Evidence map›Paper›PMID 31700988›Full record

ArticleAlzheimer's & dementia (Amsterdam, Netherlands)2019

Practical algorithms for amyloid β probability in subjective or mild cognitive impairment.

Nancy Maserejian, Shijia Bian, Wenting Wang, Judith Jaeger, Jeremy A Syrjanen, Jeremiah Aakre, Clifford R Jack, Michelle M Mielke, Feng Gao

Abstract read
In one paragraph

Article in Alzheimer's & dementia (Amsterdam, Netherlands), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Predicting amyloid-beta pathology in the general population.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2023
    Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Nancy MaserejianDepartment of Epidemiology, Biogen, Cambridge, MA, USA.
Shijia BianDepartment of Biostatistics, Biogen, Cambridge, MA, USA.
Wenting WangDepartment of Biostatistics, Biogen, Cambridge, MA, USA.
Judith JaegerCognitionMetrics, Wilmington, DE, USA.
Jeremy A SyrjanenDepartment of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
Jeremiah AakreDepartment of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.
Clifford R JackDepartment of Radiology, Mayo Clinic, Rochester, MN, USA.
Michelle M MielkeDepartment of Health Sciences Research, Professor of Neurology, Mayo Clinic, Rochester, MN, USA.
Feng GaoDepartment of Biostatistics, Biogen, Cambridge, MA, USA.

Funding

Project 1U19AG024904 · NIA · NORTHERN CALIFORNIA INSTITUTE/RES/EDU · PI Duygu Tosun-Turgut · 2016 to 2026
$226.7M
National Centralized Repository for Alzheimer's Disease and Related Dementias (NCRAD)U24AG021886 · NIA · INDIANA UNIV-PURDUE UNIV AT INDIANAPOLIS · PI TATIANA M. FOROUD · 2002 to 2026
$119.8M
RECRUITMENT COREU19AG010483 · NIA · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI FELDMAN, HOWARD · 2013 to 2020
$80.6M
SUPPLEMENT TO ALZHEIMERS DISEASE PATIENT REGISTRYU01AG006786 · NIA · MAYO CLINIC ROCHESTER · PI GRAFF-RADFORD, JONATHAN, JACK, CLIFFORD R. · 1986 to 2023
$49.6M
THE PGRN/TDP-43 AXIS IN ALZHEIMER?S DISEASE AND NEURODEGENERATIONP50AG016574 · NIA · MAYO CLINIC ROCHESTER · PI PETERSEN, RONALD C · 1999 to 2018
$36.9M
Dominantly Inherited Alzheimer's Network Trials Unit - Adaptive Prevention TrialR01AG046179 · NIA · WASHINGTON UNIVERSITY · PI BATEMAN, RANDALL J · 2014 to 2019
$26.6M
Dominantly Inherited Alzheimer NetworkUF1AG032438 · NIA · WASHINGTON UNIVERSITY · PI BATEMAN, RANDALL J · 2014 to 2017
$21.6M
NiAD Supplement WashU Start UpU01AG051406 · NIA · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI CONSTANTINO, JOHN N., HANDEN, BENJAMIN L · 2015 to 2019
$21.3M
Alzheimer's Prevention Initiative ADAD Colombia TrialR01AG055444 · NIA · BANNER HEALTH · PI LOPERA, FRANCISCO, REIMAN, ERIC MICHAEL · 2017 to 2022
$14.9M
PREDICTING ALZHEIMERS DISEASE WITH MAGNETIC RESONANCER01AG011378 · NIA · MAYO CLINIC ROCHESTER · PI JACK, CLIFFORD R. · 1993 to 2017
$12.1M
Rochester Epidemiology ProjectR01AG034676 · NIA · MAYO CLINIC ROCHESTER · PI ROCCA, WALTER A, ST SAUVER, JENNIFER LYNN · 2010 to 2019
$9.5M
Early Onset Alzheimer's Disease ConsortiumR56AG057195 · NIA · INDIANA UNIVERSITY INDIANAPOLIS · PI APOSTOLOVA, LIANA G, CARRILLO, MARIA C · 2017 to 2017
$7.7M
NIA NIH HHS P50 AG016574NIA NIH HHS R01 AG011378NIA NIH HHS R01 AG034676NIA NIH HHS R01 AG040282NIA NIH HHS R01 AG041851NIA NIH HHS R01 AG043392NIA NIH HHS R01 AG046179NIA NIH HHS R01 AG049704NIA NIH HHS R01 AG054491NIA NIH HHS R01 AG055444NIA NIH HHS R01 AG056366NIA NIH HHS R37 AG011378NIA NIH HHS R56 AG057195NIA NIH HHS RF1 AG050745NIA NIH HHS RF1 AG055151NIA NIH HHS U01 AG006786NIA NIH HHS U01 AG051406NIA NIH HHS U19 AG010483NIA NIH HHS U19 AG024904NIA NIH HHS U24 AG021886NIA NIH HHS UF1 AG032438NINDS NIH HHS R01 NS089757NINDS NIH HHS R01 NS092625NINDS NIH HHS R01 NS097495NINDS NIH HHS R21 NS094684
6 · The paper itself

Abstract

introductionPractical algorithms predicting the probability of amyloid pathology among patients with subjective cognitive decline or mild cognitive impairment may help clinical decisions regarding confirmatory biomarker testing for Alzheimer's disease.

methodsAlgorithm feature selection was conducted with Alzheimer's Disease Neuroimaging Initiative and Australian Imaging, Biomarkers and Lifestyle Flagship Study of Ageing data. Probability algorithms were developed in Alzheimer's Disease Neuroimaging Initiative using nested cross-validation accompanied by stratified subsampling to obtain 1000 internally validated decision trees. Semi-independent validation was conducted using Australian Imaging, Biomarkers and Lifestyle Flagship Study of Ageing. Independent external validation was conducted in the population-based Mayo Clinic Study of Aging.

resultsTwo algorithms were developed using age and normalized immediate recall z-scores, with or without apolipoprotein E ε4 carrier status. Both algorithms had robust performance across data sets and when substituting different recall memory tests. DISCUSSION: The statistical framework resulted in robust probability estimation. Application of these algorithms may assist in clinical decision-making for further testing to diagnose amyloid pathology.

Indexed as

ADNIAIBLAlgorithmAlzheimer's diseaseAmyloidAPOE ε4BiomarkerImmediate recallMCSA

Identifiers

PMID31700988
PMCPMC6827360

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.